Witham

Polluted by sewage 151 times in 2025 lasting 942 hours

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Live data for Witham in 2026

So far this year (as of 25 Oct 2026, 15:15) there has been 3,952 hours of sewage overflows, from 52 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Sewage without rain in Witham

On 12 occasions since December 2024, no rain fell anywhere in Witham for days — and its CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s discharged anyway.

29 Apr - 4 May 2025 1 at once · 9h 3 Apr - 6 Apr 2025 2 at once · 8h 8 Apr - 9 Apr 2025 1 at once · 4h

Totals for Witham in 2025

21 Sites polluted by Anglian Water
151 sewage dumps
942 hours duration
Sewage pollution map of Witham
Sewage pollution map of Witham: 151 spills in 2025, lasting 942 hours, by Anglian Water
That's 1.31 months. 2.9 times a week, on average

Change Over Time

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Witham in 2025. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Anglian Water River Brain WHITE NOTLEY WATER RECYCLING CENTRE 22 228 98.6
Anglian Water Tollesbury Fleet To Blackwater TOLLESBURY WATER RECYCLING CENTRE 17 177 100
Anglian Water River Colne EARLS COLNE WATER RECYCLING CENTRE 10 111 98.9
Anglian Water River Colne HALSTEAD (LANGLEY) WRC 10 94 99.9
Anglian Water Stisted Brook River Blackwater STISTED STW 4 65 100
Anglian Water Virley Brook Salcottcreek TIPTREE WATER RECYCLING CENTRE 6 54 99.9
Anglian Water Roman River COPFORD WATER RECYCLING CCENTRE 10 46 100
Anglian Water Layer Brook TOLLESHUNT KNIGHTS FORGE PS 7 44 100
Anglian Water Layer Brook GORSE LANE TERMINAL PUMPING STATION 4 25 100
Anglian Water Tidal River Chelmer WITHAM STW 3 17 100
Anglian Water Roman River LAYER DE-LA-HAYE STW 3 14 100
Anglian Water . EAST ST COGGESHALL 4 12 98.4
Anglian Water River Ter HATFIELD PEVEREL CRABBS HILL PS 3 12 83.1
Anglian Water River Colne EARLS COLNE CHURCH HILL #3 CSO 17 10 99.4
Anglian Water Penny'S Brook River Blackwater SCHOOL ROAD PS 1 10 100
Anglian Water River Blackwater OUTLET AT GREY'S MILL 11 8 99.7
Anglian Water River Colne EARLS COLNE 6 3 100
Anglian Water . STATION RD KELVEDON 5 1 70.15
Anglian Water Bowstead Brook River Blackwate TOLLESHUNT D'ARCY STW 3 1 93.5
Anglian Water River Blackwater COGGESHALL WATER RECYCLING CENTRE 2 1 100
Anglian Water River Colne EARLS COLNE ST ANDREWS CHURCH CSO 3 1 94.2
Anglian Water River Blackwater COGGESHALL EAST STREET RO 18 CSO 0 0 100
Anglian Water Spicketts Brook Blackwater GREAT TOTHAM STW 0 0 100

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.

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